The Rise of the (Financial) Machines
BartlebyScrivener writes "A New York Times Op-Ed quoting Freeman and George Dyson wonders if Wall Street geeks and 'quants' outsmarted themselves with computer algorithms to create the current financial debacle: 'Somehow the genius quants — the best and brightest geeks Wall Street firms could buy — fed $1 trillion in subprime mortgage debt into their supercomputers, added some derivatives, massaged the arrangements with computer algorithms and — poof! — created $62 trillion in imaginary wealth. It's not much of a stretch to imagine that all of that imaginary wealth is locked up somewhere inside the computers, and that we humans, led by the silverback males of the financial world, Ben Bernanke and Henry Paulson, are frantically beseeching the monolith for answers.'"
The quoted essay from George Dyson is available at Edge.
Check out this 47 minute video for a very easy to understand and clear explanation.
http://video.google.com/videoplay?docid=-9050474362583451279
Unless you've been through university on some Economics degree - you were probably unaware of this.